How's this being sent from client to server? and once entering the name to join the chat? "Enter the name of the chat you want to join".

Found that it uses createframe 60.

The client sided codes
Code:
private void chatJoin(long l) {
		try {
			if(l == 0L)
				return;
			stream.createFrame(60);
			stream.writeQWord(l);
			return;
		}
		catch(RuntimeException runtimeexception) {
			signlink.reporterror("47229, " + 3 + ", " + l + ", " + runtimeexception.toString());
		}
		throw new RuntimeException();
	}
Code:
if(friendsListAction == 6) {
						long l3 = TextClass.longForName(promptInput);
						chatJoin(l3);
					}
Code:
if(j == 550) {
			inputTaken = true;
			inputDialogState = 0;
			messagePromptRaised = true;
			promptInput = "";
			friendsListAction = 6;
			aString1121 = "Enter the name of the chat you wish to join";
		}